If Willow Smith set them up, Jessie J knocked ’em down.  For, in a stunning performance the British bred beauty has brought another taste of her infectious pop across the pond to X Factor US.  Dropping by to unveil another scorching performance of her hit single ‘Domino’, the young starlet looks to have won over another group of fans with her stirring live set.

See the diva-in-training after the jump:

Your thoughts?